Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 212, Issue -, Pages 134-145Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2022.05.094
Keywords
Marine polysaccharide; Bio-multifunctional materials; Antibacterial; Hemostasis; Dry socket
Funding
- National Natural Science Foundation of China [31900957]
- Shandong Provincial Natural Science Foundation [ZR2019QC007]
- Innovation and technology program for the excellent youth scholars of higher education of Shandong province [2019KJE015]
- Traditional Chinese Medicine Science and Technology Project of Shan-dong province [2021Q069]
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In this study, bio-multifunctional sponge materials with antibacterial, hemostatic, and osteogenic properties were developed for the prevention of dry sockets after tooth removal. The sponge showed excellent antimicrobial effects, promoted cellular osteogenesis, and demonstrated potential for wound management.
Tooth removal, particularly for patients with severe periodontitis, can frequently cause massive bleeding, postoperative infection, and bone resorption, resulting in a dry socket. Thus, developing bio-multifunctional materials with excellent antibacterial, hemostatic, and osteogenic characteristics for the prevention of dry sockets after tooth removal is highly desirable in clinical applications. Herein, chitosan-CaP microflowers (CM) and metronidazole (MD) loaded calcium alginate (CA) sponges (CA@CM/MD) with enhanced antibacterial, hemostatic, and osteogenic properties were developed via Ca2+ crosslinking, lyophilization, and electrostatic interaction for the prevention of dry socket after tooth removal. The fabricated CM particles display 3 -dimensional, relatively homogeneous, and flower-shaped architectures. The CA@CM/MD composite sponges were facilely shaped into the tooth root as well as exhibit interconnected porous and lamellar structures with remarkable porosity, suitable maximum swelling ratio, as well as excellent compressive and hemostatic performance. Besides, the in vitro cellular assessment demonstrates that the prepared CA@CM/MD composite sponges possess satisfactory cytocompatibility. Importantly, the designed sponges significantly suppress the growth of S. aureus and E. coli, as well as promote cellular osteogenic differentiation by upregulating the formation of alkaline phosphatase. Our findings indicate that the tooth root-shaped composite sponges hold great promise for wound management after tooth removal.
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